A188891 - OEIS

A188891 as a simple table

n	a(n)
3	3
4	36
5	210
6	6
7	55
8	21
9	325
10	10
11	0
12	105
13	36
14	1275
15	15
16	45
17	231
18	0
19	946
20	276
21	21
22	11935
23	66
24	136
25	351
26	1596
27	78
28	28
29	1225
30	595
31	820
32	58653
33	190
34	325
35	1335795
36	36
37	6670
38	0
39	561
40	4005
41	120
42	1128
43	1485
44	203841
45	45
46	666
47	6903
48	465
49	4950
50	20910
51	741
52	153
53	10731
54	8911
55	55
56	1953

[3,36,210,6,55,21,325,10,0,105,36,1275,15,45,231, 0,946,276,21,11935,66,136,351,1596,78,28,1225,595, 820,58653,190,325,1335795,36,6670,0,561,4005,120, 1128,1485,203841,45,666,6903,465,4950,20910,741, 153,10731,8911,55,1953]